1940s steel round vintage Longines watch

A round steel vintage Longines watch. The case measures 31 mm in diameter and has unusual hooded lugs. The case is signed E.B.E., stainless steel and numbered. The movement is signed Longines, Swiss Made with 17 jewels and numbered. The silvered dial has black Arabic numerals with a subsidiary seconds dial, an outside minute track and blued steel hands. The dial is signed Longines above the centre.